Compile after 'configure.developer' errors out on dozens of the files in the testsuite directory for lack of declaration of bzero.
I did a work around to add #include <strings.h> (not string.h) to the offending files.
With that many files missing the right include, perhaps configure or ifdef is not properly configured for the environment for testsuite?

Just a quick addendum, first I forgot to say thanks for helping out. Y'all are great to work with.
And as quick disclaimer, I haven't verified that all of the files in the above list error out, but I have verified it for a dozen or so of them (and then gave up trying). Some of those files might not actually give an error (for instance I never did get an error on open1.c even though the other open[0-9].c files in that list did but then it might have if I fixed enough other errors).
Thanks again!